公开(公告)号：EP2732431B1

公开(公告)日：2019-03-13

申请号：EP12751118.6

申请日：2012-07-10

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran

IPC分类号： G06T5/00

公开(公告)号：EP2815380B1

公开(公告)日：2018-04-25

申请号：EP13711958.2

申请日：2013-01-30

申请人： Koninklijke Philips N.V.

发明人： LAMASH, Yechiel ,  GOSHEN, Liran

IPC分类号： G06T3/40

CPC分类号： G06T3/4053 ,  G06T3/0068 ,  G06T11/003

摘要： In one aspect, a method for generating higher resolution volumetric image data from lower resolution volumetric image data includes receiving volumetric image data of a scanned subject, wherein the volumetric image data includes data representing a periodically moving structure of interest of the scanned subject, and wherein the volumetric image data covers multiple motion cycles of the periodically moving structure of interest. The method further includes estimating inter-image motion between neighboring images of the received volumetric image data. The method further includes registering the received volumetric image data based at least on the estimated inter-image motion. The method further includes generating the higher resolution volumetric image data based on the registered volumetric image data, a super resolution post-processing algorithm, and a point spread function of an imaging system that generated the volumetric image data. The higher resolution volumetric image data has an image resolution that is greater than the lower resolution volumetric image data.

公开(公告)号：EP3060106A1

公开(公告)日：2016-08-31

申请号：EP14796285.6

申请日：2014-10-09

申请人： Koninklijke Philips N.V.

发明人： GILBOA, Guy ,  LAMASH, Yechiel ,  GOSHEN, Liran

IPC分类号： A61B5/02 ,  A61B6/00 ,  G06F19/00

CPC分类号： A61B6/504 ,  A61B5/02007 ,  A61B5/026 ,  A61B5/055 ,  A61B6/03 ,  A61B6/032 ,  A61B6/5217 ,  G16H50/50

摘要： A method includes obtaining a boundary condition estimate. The boundary condition estimate includes at least an estimated outlet resistance of a vessel with a stenosis. The method further includes correcting the boundary condition estimate based on a severity of the stenosis, thereby creating a corrected boundary condition. The method further includes determining an FFR index based on the corrected boundary condition. The method further includes displaying the FFR index. A computing system includes a computer readable storage medium with instructions that iteratively determine at least an FFR index based on a severity of a stenosis of a vessel. The computing system further includes a computer processor that processes the instructions and generates the FFR index based on the severity of the stenosis of the vessel.

公开(公告)号：EP2880625A1

公开(公告)日：2015-06-10

申请号：EP13771616.3

申请日：2013-07-25

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran ,  GRINGAUZ, Asher

IPC分类号： G06T5/00 ,  G06T3/40

摘要： A method for improving image quality of image data includes analyzing, for each of a plurality of voxels of image data, a set of entries of a dictionary, wherein an entry represents a mapping between a lower resolution patch of voxels and a corresponding higher resolution patch of voxel or a local neighborhood around a voxel, deriving, for each of the plurality of voxels, a subspace based on the analysis, wherein the subspace is for one of the mapping or the local neighborhood, and restoring target image data based on the subspaces, wherein the target image data is image data with higher image resolution or reduced image noise.

摘要翻译： 一种用于提高图像数据的图像质量的方法包括：针对图像数据的多个体素中的每一个分析词典的一组条目，其中条目表示体素的较低分辨率图像和相应的较高分辨率图像之间的映射 体素或体素周围的本地邻域，基于分析为多个体素中的每一个导出子空间，其中子空间用于映射或局部邻域中的一个，以及基于子空间恢复目标图像数据 其中，目标图像数据是具有较高图像分辨率或降低的图像噪声的图像数据。

公开(公告)号：EP2732431A2

公开(公告)日：2014-05-21

申请号：EP12751118.6

申请日：2012-07-10

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  A61B6/032 ,  A61B6/481 ,  A61B6/482 ,  A61B6/5205 ,  A61B6/5258 ,  G06T2200/04 ,  G06T2207/10072 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2207/30008

摘要： A method includes estimating structure models for a voxel(s) of a spectral image based on a noise model, fitting structure models to a 3D neighborhood about the voxel(s), selecting one of the structure models for the voxel(s) based on the fittings and predetermined model selection criteria, and de-noising the voxel(s) based on the selected structure model, producing a set of de-noised spectral images. Another method includes generating a virtual contrast enhanced intermediate image for each energy image of a set of spectral images corresponding to different energy ranges based on de-noised spectral images, decomposed de-noised spectral images, an iodine map, and a contrast enhancement factor; and generating final virtual contrast enhanced images by incorporating a simulated partial volume effect with the intermediate virtual contrast enhanced images. Also described herein are approaches for generating a virtual non-contrasted image, a bone and calcification segmentation map, and an iodine map for multi-energy imaging studies.

摘要翻译： 一种方法包括基于噪声模型来估计光谱图像的体素的结构模型，将关于体素的3D邻域的拟合结构模型拟合，基于以下方式选择体素的结构模型之一： 配件和预定模型选择标准，并且基于所选择的结构模型去除体素，产生一组去噪的光谱图像。 另一种方法包括：基于去噪频谱图像，分解的去噪频谱图像，碘图谱和对比度增强因子，生成对应于不同能量范围的一组光谱图像的每个能量图像的虚拟对比度增强中间图像; 以及通过将模拟部分体积效应与中间虚拟对比度增强图像相结合来生成最终的虚拟对比度增强图像。 本文还描述了用于生成虚拟非对比图像，骨骼和钙化分割图以及用于多能量成像研究的碘图的方法。

公开(公告)号：EP2671209A1

公开(公告)日：2013-12-11

申请号：EP12703886.7

申请日：2012-01-18

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran

IPC分类号： G06T11/00

CPC分类号： A61B6/52 ,  G06T11/005 ,  G06T2211/408

摘要： A method and system for dual energy CT image reconstruction are provided. In one aspect, a fast kVp switching x-ray source is used during an imaging scan to produce a low energy x-ray beam for L consecutive projection angles, and then to produce a high energy x-ray beam for H consecutive projection angles, wherein L is substantially less than H. Various methods are provided for estimating the resulting undersampled data in the low energy projection data set and the high energy projection data set. The missing low energy projection data may be estimated from the known high energy projection data using any one of several disclosed structural propagation embodiments.

公开(公告)号：EP2646975A1

公开(公告)日：2013-10-09

申请号：EP11815716.3

申请日：2011-11-16

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran ,  GRINGAUZ, Asher ,  LAMASH, Yechiel ,  FELDMAN, Andrei ,  PARDO-ROQUES, Guido ,  SAPIR, Jonathan

IPC分类号： G06T5/20

CPC分类号： G06T5/007 ,  G06T5/002 ,  G06T5/20

摘要： A method includes enhancing a contrast to noise ratio (CNR) of image data, generating CNR enhanced image data, wherein the CNR enhanced image data has a substantially same image quality as the image data. A computing system (118) includes a computer readable storage medium (122) encoded with computer readable instructions for enhancing a contrast to noise ratio (CNR) of image data and one or more processors (120), which, when executing the computer readable instructions, causes the computing system to enhance the CNR of the image data. A method includes generating CNR enhanced image data, wherein CNR enhanced image data has a substantially same noise level, noise power spectrum, and spatial resolution of the image data.

公开(公告)号：EP4355218A1

公开(公告)日：2024-04-24

申请号：EP22731714.6

申请日：2022-06-09

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran

IPC分类号： A61B6/03 ,  A61B6/00 ,  A61B8/08 ,  G06N3/00

CPC分类号： A61B6/032 ,  A61B6/482 ,  A61B6/5205 ,  A61B8/5223 ,  A61B8/5292 ,  A61B6/4241 ,  G06N3/0464 ,  G06N3/084 ,  G06N3/09

公开(公告)号：EP4256463A2

公开(公告)日：2023-10-11

申请号：EP21820564.9

申请日：2021-11-28

申请人： Koninklijke Philips N.V.

发明人： WIEMKER, Rafael ,  GOSHEN, Liran ,  NICKISCH, Hannes ,  BONTUS, Claas ,  BROSCH, Tom ,  PETERS, Jochen ,  WEESE, Rolf Jürgen

IPC分类号： G06K9/00

公开(公告)号：EP4208844A1

公开(公告)日：2023-07-12

申请号：EP21765942.4

申请日：2021-08-26

申请人： Koninklijke Philips N.V.

发明人： GOSHEN, Liran

IPC分类号： G06T5/00 ,  G06T5/20 ,  G06K9/00